Vibkatoey convebtee



BEST AVAILABLE COP" Dec. 14 1926.

. O. M. LEECH VIBRATORY CONVERTER Patented Dec. 14. 1926.

Best AVAILABLE con., UNITED STATES PTENT OFFCE.

OSCAR M. LEICH, OF GENOA., IILLINOIS, ASSIGNOR TO LEICH ELECTRIC CO., OFGENOA, ILLINOIS.

VIBRATORY CONVERTER.

Application led December 31, 1921. Serial No. 526,344.

My invention relates to vibratory converters, and more particularly to adevice of this character which is adapted for charging a storagebattery, and which is provided with means for preventing discharge ofthe storage battery through the converter.

It is a purpose of the invention to provide a vibratory converter orrectier that is provided with an armature which carries contact membersthat are adapted to cooperate with a pair of fixed contacts arranged onopposite sides of the contact carrying member. The contacts carried bythe armature, and the fixed contacts are so related that the armaturewill not contact with the pole pieces of the magnet, thus preventingfreezing or sticking of the armature to the pole p ieces.

lIt is a further purpose of the invention to provide means cooperatingwith the movable contact `carrying member, whichis adapted to hold saidmovable contact carrylng member in such position, when no current fromthe main source of supply is passing through the coils, that the movablecontacts areout of engagement with the fixed contacts, thus preventingdischarge of a storage battery which isbeing charged throughtherectifier. It is more specifically a purpose of the invention toprovide a member which is connected with an varmature'adapted to beattracted by the electromagnets of the converter that is adapted toenter a recess' in the movable contact carryingl member to preventmovement thereof when the armature is not attracted by theelectromagnet, the member being so mounted that it will be overbalancedso as to cause the point thereof .that engages with the movable contactcarrying member toengage therewith, unless the armature is attracted bythe electromagnets of the converter.

Itis also a purpose of the invention to provide a bracket member uponwhich the lower ends of the coils are mounted, and upon which thelocking member for the movable contact carrying member is pivoted whichis made of non-magnetic material.

Other objects and advantages of the'invention will appear, as thedescription of the accompanying drawings proceeds. However, I desire tohave it distinctly understood that I doy not lintend to limit myself tothe exact details shown or described, but that I intend to include aspart of my invention all such obvious changes and modifications of partsas would occur to a person skilled in this art, and as would fall withinthe scope of the claims.

In the drawings:

Fig. 1 is a front elevation of my improved vibratory converter;

Fig. 2 is a fragmentary front elevation of the lower portion of theconverter shown in Fig. 1 with the movable contact carrying memberlocked in central position;

Fig. 3 is a side elevation of the device shown in Fig. l, showing thelocking member in locking position;'and

Fig. 4 is a fragmentary detail view of the end of the shaft for thearmature.

Referring in detail to the drawings, the improved vibratoryA convertercomprises a pair of coils 5 which yare provided with cores terminatingin the threaded end portions (5,.said` end portions being providedwiththe lnuts 7 and 8 for holding the member 9 of insulating materialinplace thereon, said member 9 having a U-shaped bracket member 10 mountedthereon in any suitable manner, said member 1U being provided with 'ears11 and 12 for supporting the shaft 18, said shaft 13 passing throughopenings in said ears and being held in xed position relative to saidears by means of the member 14 secured to the ear 11 by means of thescrew 15 and having a hooklike portion at 16 engaging with a suitableopening in the end of the shaft 13 to hold the same from turning.

Mounted on the shaft 13 is the armature carrying member 17 which isprovided with the-U-shaped bends 18 and 19 in the ends 'thereof whichare provided with openings through which the shaft 13 passes, and whichform bearings for the shaft 13, so that the member 17 can turn thereon.Secured in any suitable manner on the member 17 is the armature 20, saidarmature cooperating with the'threaded pole pieces 6 of theelectromagnets, of which the coils 5 are a part, in a well knownmanner.' The U-shaped member 18 is provided. with a screw 21 forsecuring the conductor 22 thereto, said conductor extending through anopening in the upwardly extending ear 23 on the U-shaped member '10, aswill be clear from Fig. 3. The member 17 is provided with a dependingend portionT Qllfipoh which is djsteblj mounted the movable Contactcarrying member 25, said member 25 b eiiig adjust;1b le by means otLtl'ie is'lo't'" 26 int-ire" 'forked' enioportionj oi; the member 25 andthe screws 27, which 'eretti' n'iounted in the member The inernbex .Z:5-

provided with ears LVS upon'iihich the4 Spring contact members 29gare;mounted, seid spring contact members 2) being secured by menne-'dfthelscrews 30" and being'4 secured in such manner' that theftr will bestretched or snbstanti'aclly taut'- 'when' put-in' position on thearmature carrying n'iembei; thus acting sfsubstzmtiallj' tautf .springrstrips,A 1The members 29 aref. provided: intermediate; the ends thereofwith Contact pintslizivhich adapted to Cooperate withsit'able'adjust-able stationary contacts 32;; :which areprovided-:intimi lchurledencifprtions 3 3 'for aidjnsting'the same linthe end portions-8% of' the lr-shap'edf members 35a carrying thes'a'me': The members? 351 re.secud-lt el Suitable supporti-n memberl 36lof-insulatixginterisul;-i'1r. s.'nu -desiitedqmnnnen means' di thescrews 63, airdchavingxwiringteminals 64;? Sandi mounting.' of'thefnembers .3 5-*on the member.. v36- insulet'es tti-esame -om eachothe The' inenibers 32: are h'ellri'nadjnsted position' by: theloektnutsia'suwill'be clear. Secure'd cofthele'er ends' of the coils 5"snpprting" .'brket member A38 :which is`r minne; of; non-magnetici'materiel,l and .is provided with? the nfbwaidly 'extendingipertionBQ-at'thedrivards end'thereof and'with n; "ciinv'uin':trdl-y7.extending 'portion 40- 'ab the reel? thereof.- The" 'member .38- issecuredv to th'ef coresiextending?ithrouighrfthecoils- 5 by theretdon'ith'ef iderside thereoat! then-U: edf member 42,* the'. Adeptar'rdingportions 13 of" which a're provided-initie -fipettrres which serve-ais'be'aringsior the sh'atfll exj tending bjetvee'n the snneysid shaft-Miha?ing" in'ounteii thereon so as .to turn. therewith the ermture 45,: saidarma-ture -being`-pr0 vided with ears 46 having;a-pertnresfthereinthrough which the sha'tt-M extends., '.The irin'at'u're' 4 5 is provided`With fari-ear 47 upon .vhi'el-''is mounted the' finger 4B, seid. -inger48 'cloni'l'risng outer layer'of' insulating materiel? which: is. heidin position by means of the' Soren-"s 49. Thefinger'is adaptedtecopernte-vith'thercmzte notch or recess in' the lower end.portion--ogthe movable cont-ziet :member 25; The armature alsoha'srearWid-lj extending aims 51 which extend.. oferfthe 'screws i1,-seidi screws 4 1 being .-mgietized "lvhef aJ current passes tifroitghtheso Aas to attract the arma;- t-'re 115' .'drixin'g :theffsrms 51";toWerdthe Aopereting, therewith, and a member BEST AVAILABLE CGP` lttvill be seerrthat fwhen efeurrnti of sufiicient strength to attract thearmature to goes through the coils 5, the member 48 will intlie'po'sitiori shown' in- `Fig: 1,- :md-the zriz'nature 20 will be freeto "vibrate, thus canskigtheinovabic conta-ct members 31 to c''l'u'eitewith the stationary contacts in the usual mannen toconvert enalternating into a. direct current.' lt wili be noted: that whenzi-.frxed'eontuc-tis engaged by-a movable 'Contact that the zzrniature-2G will be out oi conte-ict with the members t3 thus prv- \"cntingsticli:ii ig oitheu mature to the meg net 'p oegs. '.lghe minet-.ure so o'Yer-bniancedfftlmtggthe' saine assumes the position' shown'in Fig.n'hef there is insufficient current missing-through .the coiis toattra-ct ele'iriniiture 4 5. -hen tliein'einber 1S willenter-tlrenotch-or recess 50, sshonn inFig. '29 and theinoijable Contactearn-fing member will; belocketl-in a centr'zilosition' nith' thecontacts, 32- speced from thefjc'ontects 31 :it b oth Sides thereof, aswill.. bewcicr from Figffl., A rsithe contacts are. sepiriated undei`these'l circumstances, there Willbe no` chance fer-je current-.topass-through the device, eztcept when the source-Tof alternating currentis connected with the device. If any failure o ce u rs-,in the source.of :alternatingcurrent, there the finger 118- Willjiissume the positionshownin Iigsf'), and 3 end prevent vibrationfot- .the armature movablecontact ceri-ying.menibercarried thereby. rfhe upwereliy attending end.'portion-s 39 ofthe meHbeRBS carry the member 365 of insulitingniatermi,las .willbe c'ner from Fig. 3, the .same beingheidr'in position by.Silitfable i}ie:t1is snchas the scre'ns shown iiiFig. 3, 'Secured tothe ineinb'erfS. i-'stlie rnzgner "1`.he .s ha. f t 1? is.mnde so iis-to'be ifx'ed in the.supporting-brecht l1th :ind the member 1j?iefnedeso as to turn on'the shaft 18 so that the parts can be readilyrenewed it any .Weertakes piece wher'ewthe she-tt 13 plissee throughtlienieinbcrl 1i", all that is necessary being.to'replzicethe'member 17to re- 'j' Hixving .thus described my invention what 1 desire vto ciaimand secure by U. S. Letters Patent fis:

1.-.A yibratoryconverter of thecharziCter described-comprising anelectromagnc't energized from e sourceofcurrent, :i vibratory erinature,contact members mounted to more .Wit-hg said armature, 'stationery1cont-.iets copositi'yfelyfholdingeeid movable. 'Contact'meinfroiirs'iid4 stationary contacts when ,`said energiiing 'currentd'o'e's not pass thri'n'gh seidelectrinagnet, seid member "Screws 4 1'.VSeid rniS-l-are .provided with "liyingnb lnl'iiienee 'on 'Said'ar-'mature While suzit'ble projections' or ings 52 thereon o f lnon-ni` `eti`c mferia-l-adaptedtoerigage the screws 4i- 'sof'is toipreventffreezing or sticking et the arms 5 1 thereto.

armature, contact members mounted to more with said armature; stationarycontacts cooperating therewith,- 'aiid aimemberifor holding said movablecontactmembers spaced from said stationary contacts whenlsaid energ'izin'g current` docs not pass through said' electromagnet and havingno effect on said;

armature when said -electromag'net is energized from said source.""' I"t 3. A vibratory'convcrter of the character described comprising avibratory member, cont-acts -mounted thereon, stationary contactscooperating therewith, means for holding said movable contacts spacedfrom said stationary contacts and electro-magnetic means for maintainingsaid holding means out of holding position when said converter isoperating.

4. A vibratory converter of the character described comprising avibratory member, contacts carried thereby, stationary contactscooperating therewith, and a member out of engagement with saidvibratory member when said converter is operating and adapt ed to engagesaid vibratory member to hold said movable contacts spaced from saidstationary contacts when said converter is inoperative.

5. A vibratory converter of the character described comprising anelectromagnet, a vibratory armature cooperating therewith, a movablecontact carrying member vibrating with said armature, stationarycontacts cooperating therewith and means for holding said movablecontacts spaced from said stationary contacts comprising an armatureadapted to be attracted by said electromagnet to hold said means ininoperative position.

6. A vibratory converter of the character described comprising anelectromagnet, a vibratory armature cooperating therewith, a movablecontact carrying member vibrating with said armature, Stationarycontacts cooperating therewith and means for holding said movablecontacts spaced from said stationary contacts comprising a pivotallymounted lockin member having an armature adapted toghe attracted by saidelectromagnet to hold said locking member in inoperative position.

7 A vibratory converter of the character described comprising anelectro-magnet, a vibratory member operated thereby, contacts mountedthereon, stationary contacts cooperating therewith and mechanical meanscontrolled by said electro-magnet for holding the contacts on saidvibratory member spaced from said stationarycontacts.

8. In a device of the character described, an electromagnet, a vibratoryarmature cooperating therewith, contacts mounted to move with saidarmature, and cooperating stationary contacts, a stationary shaft aboutwhich said armature turns, a supporting 8 BEST AVAILABLE COP.

bracket for said shaft, and a member on said :bracket lengaging saidshaft to hold said' shaft against rotation.

9. AI vibratory converter of the character described comprising anelectromagnet, a vibratory armature cooperating therewith, a' movablecontact carrying member vibrating with said` armature, stationarycontacts cooperating therewith, a4 bracket member of non-magneticmaterial supporting said electromagnet at the lower end thereof, andlocking means for said movable contact carrying member pivotally mountedon said bracket.

10. A vibratory converter of the character described comprising anelectromagnet, a vibratory armature cooperating therewith, a movablecontact carrying member provided with a recess vibrating with saidarmature, st-ationary contacts cooperating therewith, a bracket memberof nonmagnetic material supporting said electromagnet at the lower endthereof, and locking means for said movable contact carrying memberpivotally mounted on said bracket, said means comprising a lockingfinger on one end thereof adapted to enter the recess in said movablecontact carrying member to lock the same against movement.

11. A vibratory converter of the character described comprising anelectromagnet, a vibratory armature cooperating therewith, a movablecontact carrying member provided with a recess vibrating with saidarmature, stationary contacts cooperatingtherewith, a bracket member ofnon-magnetic material support-ing said electromagnet at the lower endthereof, and locking means for said movable contact carrying memberpivotally mounted on said bracket, said means comprising a lockingfinger on one end thereof adapted to enter the recess in said movablecontact carrying member' to lock the same against movement, and anarmature on the other end thereof adapted to be attracted by saidelectromagnet.

l2. A vibratory converter of the character described comprising anelectromagnet, a vibratory armature cooperating therewith, a movablecontact carrying member provided with a recess vibrating with saidarmature, stationary contacts cooperating therewith, a bracket member ofnon-magnetic material supporting said electromagnet at the lower endthereof, and locking means for said movable contact carrying memberpivotally mounted on said bracket, said means comprising a lockingfinger on one end thereof adapted to enter the recess in said movablecontact carrying member to lock the same against movement, and anarmature on the other end thereof adapted to be attracted by saidelectromagnet, said member being over- .balanced so as to cause saidlocking finger to enter said recess due to the action of gravity.

iii-"5 lil., A vibratory converteroi the,charactere described comprisingan el.eetrongiagnetiener-` gized 4from a source of current, a vibratoryarmature, a Contact member-mounted to move with said armature,ajstationary contact cooperating therewith, and a magneticallycontrolled member for positively holding said movable Contact memberspaced from said stationary Contact When said energizing current doesnot pass through said electromagnet.

14. A vlbratory converter of the character oeseribed comprising aneleetromagnet ener-A BEST AVAILABLE COP.

gized from a source of current, a vibratory armature, a Contact membermounted to move with said armature, a stationary contact cooperatingtherewith, and mechanical means controlled by said magnet movable intoposition to hold said movable Contact member spaced from said stationaryContact when said energizing current does not pass through saidelectromagnet.

In witness whereof, I hereunto subscribe my name this 30th day ofNovember A. D.,

OSCAR M. LEICH.

